Improvement in buck-saw frames



NITED STATES PATENT OFFJ WILLIAM HANKIN, OF WILLIAMSBURG. NEI/V YORK,ASSIGNOR TO HIMSELF, WILLIAM H. HANKIN, AND H. W. PEACE, OF SAME PLAGE.

IMPROVEMENT IN BUCK-SAW FRAMES.

Specication forming part of Letters Patent No. 120,157, dated October24, 1871.

To all whom it may concer-n: frame, as shown. By the diagonal braces theBe it known that I, WILLIAM HANKIN, of frame Bis so stayed that its sidebars will, by Williamsburg, in the county of -Kings and State shorteningthe rod O, be spread apart at the of New York, have inventedanew andImproved `lower ends to strain the saw7 and that at the Buck-Saw; and Ido hereby declare that the folsame time the bars Will be sustained inthe lowing is a full, clear, and exact description strained position. Apin, c, is tted through thereof, which will enable others skilled intheslots in the braces D E, where the same cross art to make and use thesame, reference being' each other, as shown. This pin serves to unitehad to the accompanying drawing forming part the braces and to equalizetheir motions, the slots of this specification, in which the drawingrepreallowing the variations of angles at the crossingsents a side view,partly in section, of my improduced by more or less straining the saw.proved buck-saw. I am aware that buck-saw frames have hereto- Myinvention relates to improvements in buckfore been provided With bracesfixedly connected saws 5 and consists in the construction and arat themiddle of their length, but my invention rangement of the braces of theframe, as Will does not pertain thereto. be hereinafter specified.Having thus described my invention, I claim A, i-n the drawing.represents the saw-blade, as new, and desire to secure by LettersPatentsecured With its ends to the side pieces of the In the buclesawframe, the braces D E crossing frame B. O is the screw-rod connectingthe upper each other diagonally and united at their interends of theside pieces of the frame. A nut, a, sections by the pin c Working inelongated slots is applied to one end of the rod O to adjust the toallow them to slide upon each other, asspeciupper ends of the frame moreor less far apart. ed. Instead of the nut on the end a right-and-leftThe above specification of my invention signed nut may be used in themiddle of a divided rod by me this 10th day of January, 1870.

with equal effect. D and E are two diagonal WILLIAM HANKIN. braces,which cross each other above the middle Vitnesses: of the saw-blade, andwhich have tenons b at GEO. W. MABEE.

their ends that are inserted in lmortises of the ALEX. F. ROBERTS. (131)

